Machine for making can-bodies.



. 3 SHEETS-SHEET l.

Patented July 24, 1917i P. KRUSE.

MACHINE FOR MAKING'CAN BODIES.

APPLICATION FILED FEB.21, 1913.

WITNESSES;

P. KRUSE.

MACHINE FOR MAKING CAN BODIES.

APPLICATION FILED FEB. 21. 191s.

1 ,234, 1 82. Patented July 24, 1917.

3 SHEETS-SHEET 2.

@Kw x I y INVENTOR WITNESSES: jaar P. KRUSE. Y .I MACHINE FOR MAKING CANBODIES.

APPLICATION FILED FEB. 2, 19|3-` Patented July 24, 1917.

3 sHETs-sHEET 3.

I AssIeNoRgTo EIWRLIsscOiIJrANY, OF 'i BROOKLYN, NEW YORR, AcORPORATIoNOis` WEST vIReINIA. -V g Y To all whom it may concern:

4following is`a specification.

PETER' KRUSE, OE BROOKLYN, NEW YORK,

MACHINE FOR MAKINe oANfROnIEs.

Application `tiled. Februaryy 2f?, 1913. .Serial No. 751,051.

Be it known that I.,.PETER KRUsE, a citi-L zen of the United States,residing in the borough of Brooklyn, 'county of Kings, city and State ofNew York, have invented cer'- tain new and useful Improvements inMachines for Making CanBodies, of which the In the making of tin cansitis customary to feed flat sheets of tin cut to the required sizesuccessively to apparatus which first lbends up' and ydown the oppositeedges to form hooks; then to advance the sheet to a point where it isfolded around .an expanding mandrel called the horn in such manner thatthe hooked edges arek interlocked, whereupon the hornv expands and4draws these hooks together, and a ram called the bumper then descendsand squeezes the interengagingv hooks against the horn4 to form the sideseam of the can. This ends the work peculiar to thev so-calledbodyformingmachine as heretofore usually con- -structed The subsequentoperations have heretofore ,commonly been performed by transferring thecan bodies to other ma- These operations include they bottoming, towhich the presentinvention has no reference. The operations performed atthe top of the can body vary according-tb the kind of can to be made.For cans which receive a slip cover, it is customaryto true and contractor taperthe upper end of the can body to 4fit it to the cover, this,opera-v tion being called neclcing.? In some cases the neck is reducedto perceptibly smallerA size than the can body, this specific operationbeing called necking in. In some cases a bead is formed between the neckand the body, this operation being called bead. ing. In some cases thebead instead of4 being at the bottom of the -neck is formed lower down.Heretofore the operationsA of nec'king or necking in and beading havebeen performed in a separate machine or machinos by means of suitabledies. j

'The present invention provides 4for per' 'forming these successiveoperations of body` forming andnecking (or necking in), and also thebeading operation if desired, all in the same machine, whereby anyfurther handling `lof the stock is avoided, andthe `peration's arequickened, cheapened, and generally facilitated.u y

According to thepresent invention ythe horn of the can body-formingmachine is prolonged orv carries an extension, and means are providedfor sliding the newly formed along beyond them and may then be droppedout of the machineor conducted thence to any other desired mechanism.

Forthe neckingor necking and beading" operation, exterior dies orv jawsY are lprovided which moveinwardly and 4pinch'the neck.

portion ofv"the"'"can"fbody against the horn extension, .which-latterforms an anvil or internal ,former for shaping the neck.

Specification of Letters atent. :Patented J 2.4, 191.17, v

can bodyT alongonto the LeXtension'of the v6() For simply n ecking ornecking in, V the V horn extension may be solid so as to serve simply asan anvil orV former. For beading,

the neck portion of the horn` extension is made segmental andexpansible, and is provided with a circumferential rib coacting with aVcircumferential lgroove in the exj,

ternal necking jaws, so that after these-jaws have closed upon the canbody. the expansion of the segmental portion of the horn exten#- sionserves to crimp the metal into suchexternal groove and :thereby vformVthe bead. The segments lof the horn extension thus :ser

form beading dies. These dies are retracted and the outer jaws arecaused to move apart 4 before the next forwardfeeding movement y toenable the necked and beaded can body 4to be stripped Vfrom the hornextension and livered beyondv the machine. Y

def..

The accompanying drawings Vshow Ina-v chinesl embodying this invention.

Figure of a canbody former as is necessary to an' understanding of theinvention,'andrillus7 trating the addition thereto of the' necking lmechanism vFig.. 2 is an end elevation of the I nachine'v -1 i showingparticularly the necling mecha-v msm; j, f

Fig. 3 dinal section on alarger scale; 1 t v Fig, 4 is an end elevationof Fig. 3,;

Fig. 5 is a side elevation showing a modi` fied construction;

1 is a vertical section of somuch.V i" 95 is a fragmentary vertical Fig6 iS al1-end elevation thereof;v

Fig. 7 is an enlarged detaill of part of Fig; 2. A v

I will first' describe the machine rio completely embodies theinvention, namely,-

' made expansible in any of the known ways.

The body-forming machine comprises as usual means for feeding forwardthe sheets or blanks to bring them successively to the hook-forming andbody-bending positions; and also any usual hook-forming devices andibody-bending means for wrapping the hooked blank around the horn. Asthese latter mechanisms are well understood and form no part of mypresent invention, they are not shown. The feeding means comprises alongitudinally sliding bar or bars C deriving motion from a crank C onthe driving shaft D, the motion being transmittedthrough a link a, leverb and link c to the sliding feed ba-r C. This feed bar is provided withthe usual fingers or pawls d d for pushing forward the flat blanks, andthen after they are wrapped around the horn, for pushing forward the canbodies so as to feed them oif from the horn onto the extension B andeventually'oif from the latter to feed them out of the machine.

Above the horn is the usual bumper or swaging hammer E for closing theside seam. It is connect-ed as usual to a vertically moving slide F, andis operated by the usual lever Gr which derives its motion from .a crankGr on a'shaft D, the movement being transmitted through a pull-rod e asusual. Or any other way known in the art mzy be provided for closing theside seam.

t is well understood that in body-forini'ng machines it is necessarythat the horn be contracted at the time when the body blank is beingwrapped around it, in order that the hooked edges of the blank mayoverlap and be brought Yinto line, whereupon by expanding the horn theseedges are Caused to inter-lock, being pulled out into close engagement,whereupon the bumper or hammer cornes down and closes them together toform the side seam, after which the horn is contracted to release thebody.V

For thus expanding and contracting the horn it may be constructed ,inany known manner. The construction shown in Fig. 3 involves making theupper or anvil part B2 of the horn in a sepai'ate piece or saddle andinterposing between the main or rigid part of the horn and this anvilpart, an expander H, being a slide havinginclined or wedge-like facesengaging similar faces on the under side of the anvil part, so that.

when this slide is moved in one direction the anvil is lowered tocontract the horn, and when moved in the contrary direction it is raisedto expand the horn. The construction here shown is similar to that setforth in my pending application Serial No. 709,227, led July 13, 1912.Springs f are provided for drawing down the anvil part.

.For expanding the horn the expander slide H is moved endwise by theaction of the slidel F, which has an incline g coacting with an inclineg on an extension of the slide H, a spring la, being provided forrestoring the expander. Thus the descent of the slide F first draws backthe expander slide H and expands the horn, and-immediately thereafter itforces the hammer E against the side seam to close it.

The horn extension B projects far enough to receive the can body whenadvanced one feeding movement (or it may be twofeeding movements) beyondthe bodyforming position. At its end it is shaped to form the neckingmandrel I, that is to say it conforms to the interior contour of thelinished neck. If a bead is desired, a beading rib J is provided aroundthe exterior. For necking or necking-in alone (see Fig. 5) the neckingmandrel I may be formed integrally Vwith the extension B because norelative movement is required. But for beading, the rib J mustbe formedon a part which is expansible, so that it may be contracted to bringthis rib within the inner contour of the canbody duringthe feedingmovement which brings the body into the necking and beading position,after which the rib bearing part may be expanded. In Figs. 3 and 4 therib J and necking surface are shown as formed upon expanding dies orsegments K, of which four are shown. For mounting these they areprovided with inactive portions which enter'deeply within a recess Lwithin the extension B', and to keep them in place screw pins z' c' areprovided which enter the respect-ive segments. For expanding thesegments a special wedge M is provided having as many inclinedfaces asthere ai'e segments, each face conforming to the. inner face of itsrespective segment, so that an endwise movement of the wedge M in onedirection expands the segments to project the beading ribs J, and itsopposite endwise movement releases the segments and per- 'mits them toCollapse or move inwardly to retract the ribs. `For imparting thesemovements to the wedge M it is convenient to provide a rod N, preferablyformed integrally with the expander H, being prolonged through theextension B and having the wedge M 'fixed on its outer end., Hence. themeans for moving the expander H is made available for also moving thewedge or expander M, whereby the horn and the die segments K areexpanded simultaneously.

' incident with its neckingv end, are theneck-.

l Vare acted-'upon by. an oscillatory cam Rv shown in the form ofa ringand having Outeid'e' of vthe horn extension B and c0- l these jaws ordies P P are carried on radi:

ally movable slides P P', best shown in Fig. 2. They are shown aslsupportedin an auxiliary frame Q Vadjustablerelatively tothe'main-:frame For impartiligthe. simultaneous'pinward oroutwardmovements, they cam incline's jacting against rollers lc on the.-respective slides. The rinV 'R `is oscillated -in proper synchronismwith the othery movements by means of-a crank orjequivallent meanscarried on the shaft D, the movement -being conveniently taken from theycrank .C through the lever b; and thence through a rod n, an elbow-levera, andV a rod p1 To introduce a certaineushionin or yielding functionwhereby the neckingjaws may approach more or less according" tovariations in the thickness of the sheet metal, (and to afford a dwellinIcase the movement is taken from a crank), al cushioning spring g isinterposed vat any convenient 'p0int, preferably'between sections of thelink p. `The normal.movementmay thus be somewhat Vin excess f 4thatwhich would close the jaws, V.this excess being-taken up by the yieldingof the spring. The specific construction' shown will be best apparent.from the detail, Fig; T7, where the link p divided into two parts, hason vone of them a .sleeve-pfV against which the spring presses, andwhich has a slot 7" inwhichmoves a pin 'it O n. the other section of thelink. The sprmg is coniined between the sleeve p and Y a sleevep -eitheror both being adjustable.

:The adjustment of the sleeve p v ries the lengthof the link as awhole-,gthe adjustment of -the sleeve p2 varies the stress of thespring. During the necking stroke an 11p-4,

ward thrust is communicated to oscillate the ring and close together'the jaws, and if these seat themselves and stop before the imf pellingmovement ceases,vthe1spring gtakes up the excess-of movement, the'p'inv' sliding up ,in the slot '1". 'During the opposite or opening stroke,the `first movement reseats' .the pinvr in the'end -of the slot, -fsothat a positive opening movement is 1cox'mnunicated to the ring R. The-opening movement of the jaws P4 P maybe accomplished 1 bymeansV ofappropriate cam faces or inclines on the rin l formed by retractingsprings, the latter be- R, 'or .it may -be lpering suitable. One ofthesesprings is shown 'iat 8 in Fig.v2 as applied to one-of the l.slides P. pj

Thebody-forming elements perform' in the-well known'manner. The body isthen advanced bythe next reciprocation of the feed .slide t0 the neckingposition. The necking jawsP P then close upon the neck portzion of thebody. In so doing they may more or less contract the neckconforming itto the necking mandrel I if the latter is stationary. In case theVbeading dies are used, the necking jaws close in upon the work inadvance 0f the expansion Aof the segments K, so that as thesesegmentsexpand the beading rib J is forced out to indent the 'sheet metal intothe corresponding groove .formed in the necking jaws P. These jaws thenmove apart andthe .wedge M moves to release the se ents AK, whereuponthe can body is again advanced by the feeding mechanism to deliver itbeyond the necking device, and either to discharge it from the machineor to advance to any other desired l subsequently acting mechanisms.

Figs. 5 and 6 show the'machine asmodi- 4iedrfor performing the operationof neck- -ingor necking in, without any beading operation`l For thisthenecking surface or Vmandrel I is"formed as a solid part of the hornextension B.. For simple necking the part I will be of'nearly the samesize 'as the horn extension B', so that the neck will not be materiallyreduced, while for necking-in if a smaller neck is to be formed, itlwill be cf correspondingly smaller size. In the latter case -the,shoulder .t forms the limiting shoulder at the bottom of the neck, therebeing a corresponding shoulder 'vt'. formed Within the acti-ve faces ofthe necking jaws. The machine is adaptable :either to cylindrical canbodies or to those of a variety v of 4other shapes. -As two examples ofsuch shapes, an 4oblong body isshown in Fig. 6 and an elliptical body inFig. 4. The shape and number of jaws P P and of segments K K. may, begoverned by the shape of the can body to be operated on. Y

It is desirable to make the machineV adjustable to different sizesy ofvcan bodies, so that by simply removing the horn with its integral 1horn extension, and removing also the olders of the body formingmechanimi and the jaws P P, and bysubstituting a horn,' folders, andjaws of a different shape, adiferent can body may be formed and necked.After suchsub'stitution, if the size of the can body is thereby altered,the necking mechanism may require to be adjusted up or down to recenterit with the horn, or to be adjusted longitudinally: of the horn to bringthe necking jaws into coincidence with the plane of the neck to4beformed. To permit of these adjustments the frame Q, 4is carried upona yoke Q', which latter is vertically adjustable uponrthe main frame A,

while the frame Q is longitudinally adjustable u on the yoke. Tovertically adjust the yoke its fastening screws u are slackened and anadjusting screw Sis turned 'by its hand wheel to raise or lower theyoke, after 'which the screws u are retightened. The

frame Q is mounted upon the yoke in longitudinal dovetailed slideways c,and is adjusted by the turning of a screw T by means of its hand wheel.For adjusting the cam ring R and thereby setting the slides P P out orin, the extensible link p may be adjusted by its screw sleeve p', or theeffective length of the link n may be altered by means of the adjustingnuts shown at m m which govern its point of connection with the lever b.Any other suitable adjustments may be provided as desired.

Part of the mechanism of the machine herein set forth is similar to thatdisclosed in my application Serial No. 708,545 filed July l0, 1912, fora machine for beading and Hanging can bodies.

The mechanism herein illustrated may be considerably varied or modifiedwithout departing from the essential features of my invention which areset forth in the claims hereunto appended.

I claim as my invention 1. The combination with can body formingmechanism comprising an expanding horn, of necking and beading mechanismcomprising an extension of said horn, exterior aws movable inwardly toembrace the neck portion of the body, and internal segments movableoutwardly to squeeze the metal against said jaws, an expander withinsaid segments, and expansion mechanism for said horn connected tooperate said expander.

2. The combination with can body forming mechanism comprising anexpanding horn,I of necking and beading mechanism comprising anextension of said horn, exterior jaws movable inwardly to embrace theneck portion of the body, and internal segments movable outwardly t-osqueeze the metal against said jaws, a horn expander movablelongitudinally of the horn, and an expander for said segments connectedto said horn expander to move coincidentally therewith.

3. The combination with can body forming mechanism comprising anexpanding horn, of necking and beading mechanism comprising an extensionof said horn, .exterior jaws movable inwardly to embrace the neckportion of the body, and internal segments movable outwardly to squeezethe metal against said jaws, and expanding mechanism adapted tosimultaneously expand the horn and impart such outward movement to saidsegment-s.`

In witness whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

PETER KRUSE.

Witnesses E. A. MAIN, C. T. ZIEGLER.

DISCLAIMER 1,234,182.-Peter Kruse, Brooklyn, N. Y. MACHINE Fon MAKINGCAN-Booms.

Patent dated July 24, 1917. Disclaimer filed April 1, 1929, by theassignee by mesne assignments, E. W. Bliss Company. Therefore disclaimsany subject matter which'may be included within each or any of claims l,2 and 3 of said patent, except when the hom-expandin device and theexpanding device for the internal segments are operated from t ebody-forming end of the horn, so that their operative connections do notinterfere with the feeding of the longitudinally-separated can bodysheet at. the body-forming end of the horn, and so that the necessity ofmoving any such operative connections away from the discha e end of thehom to remove the can, is avoided.

[Oficial Gazetle April I6', 1.929.]

